Paving-strip.



.l. BANWELL.

PAVING STRIP. APPLlCATlON FILED MAR. 5. 1913 1,134,939. Patented Apr. 6, 1915.

PATENT ounce. I

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@ 10 ell- 0 mm t m y 001mm 9 "'Be a known that as. i

I citizen of the United states re siding at le el n in t sceaat f". u'yahos n State of Ohio, have; invented certa n, new

'i and e u lmp s ents n ay ng ar p h h th lewin s pss a an- My invention comprises a'paving strip ha n h d s n ish g; e na a x:- tsma eat es ubst nt l y as herei shown'a-nd bed imate Part cular y mintest ut. in the. claimbeing two-fold; first, to permit, expansion and contraction of thepaving proper; and. e second, to maintain a permanent. water-- tight joint and adhesive union between the y u p e patina tr n s desig ed for use between the paving bricks or blocks of a street and, thecurb-stone,1the' object unden such expansionkandacontraction. he strip is also particularly constructed I to be water-proof and to sustain high .weathertempera'tures Without melting and also'to stand an extremely low temperature of weather without materially changing its physical properties, particularly its elasticity and adhesiveness. The strip is also provided with a coating or covering, especially on its wider surfaces, which will per- 'mit packing, convenient handling and transporting of such strips and still yield a i water-proof and adhesive union of the desired permanency and effect.

In the accompanying drawings, Figure 1 is a perspective view of a sectlon of a pavement and curbing with my improved strip in place therein. Fig. 2 is a perspective view of a single strip comprising my invention. Fig. 3 is a cross section on a larger scale of the paving strip shown in the other views.

As shown, the paving strip consists of a relatively thin and fiat piece of elastic and flexible material 2 having beveled end faces higher than 130 Fahrenheit and embodying 3 which are reversely related. This material is in the main a petroleum residuum, consisting of hydro-carbons, mostly of the paraflin series which have undergone chemlcal changes through the application of heat and the absorption of oxygen. It is preferably an asphaltic mass of rubber-like texture having a melting point preferably certain physical properties to maintain its elasticity and adhesiveness under zero tem- Specification 10f Iiettere Patent.;

- the einoff in part It is also impenetrable to water and-not subect to disintegration by-water undera temperature-less than themelting point given. fhis m terial Pm uc y' th di t onjofcrude oil of certain grades,-to elimir nateall the volatile portions consisting .of

gasolene, burning oil and; light lubricating oils. The. process of distillation is further QQDUQPfid u t i su hmodifi ations as menu: fea ures. quirem nts dictate, such as die lsim len a m sp eric'pr ssune ill-the. still,

amiss n of ste m. and. air into. the still Fw ete ths. b dy Qf: the material contained ably rais d W th'fsa d; o sti fen. the same, an

teet e mate ial. is also ncor-pQrataditherav Wlth. Approximately fift phaltic material and; fifty-rel cent sand, with about twenty-five per cent. shoddy-dust const1tutes the mixture and strip, but I do not wish. to limit myself to this exact formula.-

The strips are molded into' any desired" length,-usually about .three to four feet long,"

and a coating of lime or chalk 4 is applied This esnhaltic material is preferk y per cent. as

t nted Arr-6, 91% f peratures, even aslow as eo inbeiow ze o.

at i

, W binder-pf shoddy-dust 1 gqi ivalent I 'to'one side and sand 5 to the other, or both 1 sides maybe coated lightly with lime, or a combined lime and sand covering may be applied. The coating is preferably thin.

the primary object belng to provide aprotective covering to permit the strips to be packed oneupon the other for a reasonable length of t me without sticking to one another and to allow them to be shipped and handled. The coating being of friablematerial is loose and removable in a large measure, that is, it may be wiped or knocked I joint will be left to permit water and frost to enter and cause trouble. In laying the strips 2 end to end between the paving and curbing, each alternate strip no I is reversely placed relatively to the adjacent strip to bring the adjacent ends in overlapping relations. This is of further advantage in producing a reasonably quick adhesive union of the strips successively with both the curb and the paving, particularly when one side of the strip is coated with lime and the other with sand, as the asphaltic mass permeates the sand more easily than lime, although it must be also understood that the lime coating is also permeable by the as phaltic mass under the influence of heat to effect a water-tight, union with thepaving and curbing.

In paving a street the general practice is to pour and sweep cementitious fluid in the cracks between the bricks or blocks, and this 1 place Without breaking the seal or joints. In brief, my improved .paving strip is a marketable product of practical value and utilitv for the purpose intended, being easily handled and shipped and Working economy in paving operations and having all the requisite 3 properties and characteristics to endure heat and cold and sudden changes of Weather under lon usage to maintain a permanently sealed oint at the curb line regardless of the expansion and contraction of the pavement. i

What I claim is: v vA paving strip adapted to be used between the paving blocks of a street and the curb to allow for expansion and contraction of the pavement and to maintain a sealed joint, and consisting. of asolid flat sided body of asphaltic material having'beveled ends,"the sides of said body with a granular material.

In testimony whereof I afiix m'y I signature in presence of tWO WItIIGSSQS;

Witnesses: 1 I

FLC. MUSSUN E. M. FISHER.

being faced ANWELL. I v 

